Multi-layer coal mine screening device
By designing a multi-layer coal mine screening device with screening and dust prevention components, the dust pollution problem has been solved, achieving efficient multi-layer screening and clean screening, and ensuring the health of operators and environmental protection.
Patent Information
- Application Number
- CN202423167845.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing multi-layer coal mine screening equipment generates a large amount of dust during operation, which endangers the health of operators and pollutes the environment.
A multi-layer coal mine screening device was designed, comprising a screening component and a dust prevention component. The screening component uses a vibrating motor to drive the high outer shell and the low outer shell to vibrate for multi-layer screening. The dust prevention component uses a dustproof plate, an arc cylinder and a cover plate to block dust, and a sealing plate cooperates with the cylinder to reduce dust leakage.
It achieves efficient multi-layer screening, reduces the health hazards of dust to operators and environmental pollution, and ensures the cleanliness and stability of screening operations.
Smart Images
Figure CN223683969U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal mine screening technical field, concretely is a multilayer coal mine screening device. BACKGROUND
[0002] The multilayer coal mine screening device plays a vital role in the process of coal mining and processing, and its main purpose is to finely classify the mined coal to improve the utilization rate and combustion efficiency of the coal. This device is widely used in coal mining sites, coal processing plants and ore screening fields.
[0003] The multilayer coal mine screening device is usually composed of multiple screening layers, a vibrating mechanism, a support and a collection device. When working, coal enters the first screening layer from the feed inlet. Different sizes of coal particles are separated by the vibrating action of the vibrating mechanism and fall into the next screening layer for further screening. Each screening layer is equipped with a screening net of a specific diameter to ensure accurate classification. Finally, the coal screened by multiple layers is collected into different collection devices. This device has the advantages of multi-stage screening and efficient classification, which not only improves the screening efficiency but also reduces energy consumption and labor costs.
[0004] However, during actual use, most devices produce a large amount of dust during operation, which affects the health of operators and pollutes the environment. Therefore, we propose a multilayer coal mine screening device. UTILITY MODEL CONTENT
[0005] The utility model aims to provide a multilayer coal mine screening device to solve the problems raised in the background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a multilayer coal mine screening device, comprising a high support frame, a low support frame is arranged outside the high support frame, a screening assembly is arranged outside the high support frame, the screening assembly comprises:
[0007] A circular plate is fixedly installed outside the high support frame, a spring rod is fixedly installed at one end of the outside of the circular plate, a connecting frame is fixedly installed at the other end of the spring rod, the circular plate, spring rod and connecting frame are provided with multiple groups, a high housing is fixedly installed outside the connecting frame, a vibrating frame is fixedly installed outside the high housing.
[0008] Vibration motor, the vibration frame outside fixed installation has vibration motor, the high shell inside fixed installation has installation frame, the installation frame outside fixed installation has thin sieve board, the high shell inside fixed installation has long hollow inclined plate, the high shell outside fixed installation has small particle outlet, the high shell outside fixed installation has big particle outlet one end, the short support frame outside fixed installation has another group of round plate, spring rod and connecting frame;
[0009] Short shell, another group of the connecting frame outside fixed installation has short shell, the short shell inside fixed installation has fixed frame, the fixed frame outside fixed installation has medium sieve board, the short shell inside fixed installation has short hollow inclined plate, the short shell inside fixed installation has small sieve board, the short shell outside fixed installation has big outlet, the short shell outside fixed installation has medium outlet, the short shell outside fixed installation has small outlet.
[0010] Preferably, the round plate, spring rod, connecting frame, vibration frame and vibration motor are provided with multiple groups, and one group of the round plate, spring rod and connecting frame is arranged at the four corners of the high support frame, another group of the round plate, spring rod and connecting frame is arranged at the four corners of the short support frame, and multiple groups of the vibration motor are linearly arranged at the outside of the vibration frame with equal intervals, and multiple groups of the vibration frame and vibration motor are arranged outside the high shell and short shell respectively.
[0011] Preferably, the big particle outlet is arranged above the thin sieve board, the small particle outlet is arranged below the thin sieve board, the big particle outlet is arranged above the short shell, the big outlet is arranged above the medium sieve board, the medium outlet is arranged below the medium sieve board, and the small outlet is arranged below the medium sieve board.
[0012] Preferably, the thin sieve board and medium sieve board are inclined, the small sieve board is arranged outside the small outlet, and the small sieve board and small outlet are arranged at the low end of the short hollow inclined plate.
[0013] Preferably, the high support frame is provided with a dustproof assembly, the dustproof assembly comprises a dustproof plate, the high shell is fixedly installed with the dustproof plate outside, the dustproof plate is fixedly installed with an arc-shaped cylinder outside, the arc-shaped cylinder is hingedly installed with a cover plate outside, the cover plate is fixedly installed with a handle outside, the short shell is fixedly installed with a sealing plate outside, and the sealing plate is fixedly installed with a cylinder outside.
[0014] Preferably, the other end of the big particle outlet is arranged inside the cylinder.
[0015] Compared with the prior art, the multi-layer coal mine screening device has the following beneficial effects:
[0016] 1. The multi-layer coal mine screening device, in order to further improve the screening efficiency and quality of the device, by setting up the screening assembly, the assembly vibration motor drives high shell and short shell vibration, high shell inside fine screening board distinguishes big and small particles, small particles are discharged from the lower small particle outlet, large particles enter the short shell through the large particle outlet, the short shell inside the medium size screening board and the small screening board relay screening, different size coal is output from the large, medium and small outlets, the inclined screening board and the hollow inclined plate assist the automatic sliding of the material, realizing multi-level screening of coal according to particle size.
[0017] 2. The multi-layer coal mine screening device, in order to reduce the harm of dust to the health of the operator, by setting up the dustproof assembly, the assembly cooperates with the dustproof plate of the high shell, the arc-shaped cylinder and the hinged cover plate, the sealing plate of the short shell cooperates with the cylinder, the large particle outlet is connected to the cylinder, in the screening process, the cover plate and the cylinder block most of the dust flying, the arc-shaped cylinder provides a buffer space for the material to enter, preventing dust from leaking out, the cover plate is closed during operation, the dust carried by the material flow is limited in the device, reducing the harm of dust to the health of the operator and avoiding environmental pollution. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a whole structure top view schematic diagram of the utility model;
[0019] Figure 2 It is a part structure section view schematic diagram of the utility model;
[0020] Figure 3 It is a part structure section view schematic diagram of the utility model; Figure 2 It is a part structure section view schematic diagram of the utility model;
[0021] Figure 4 It is a part structure section view schematic diagram of the utility model;
[0022] Figure 5 It is a part structure section view schematic diagram of the utility model.
[0023] In the drawing: 1, high support frame; 2, short support frame; 3, screening assembly; 31, round plate; 32, spring rod; 33, connecting frame; 34, high shell; 35, vibration frame; 36, vibration motor; 37, mounting frame; 38, fine screening board; 39, long hollow inclined plate; 310, small particle outlet; 311, large particle outlet; 312, short shell; 313, fixed frame; 314, medium size screening board; 315, short hollow inclined plate; 316, small screening board; 317, large outlet; 318, medium outlet; 319, small outlet; 4, dustproof assembly; 41, dustproof plate; 42, arc-shaped cylinder; 43, cover plate; 44, handle; 45, sealing plate; 46, cylinder. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0025] Please refer to Figure 1 -5, the utility model provides a technical scheme: a multilayer coal mine screening device, high support frame 1 is provided with short support frame 2 outside high support frame 1.
[0026] In an embodiment of the utility model, high support frame 1 outside is provided with screening assembly 3, screening assembly 3 includes round plate 31, high support frame 1 outside fixed mounting has round plate 31, round plate 31 outside fixed mounting has spring rod 32 one end, spring rod 32 other end fixed mounting has connecting frame 33, round plate 31, spring rod 32 and connecting frame 33 are provided with multiple groups, connecting frame 33 outside fixed mounting has high shell 34, high shell 34 outside fixed mounting has vibrating stand 35, vibrating stand 35 outside fixed mounting has vibrating motor 36, high shell 34 inboard fixed mounting has mounting bracket 37, mounting bracket 37 outside fixed mounting has fine screening plate 38, high shell 34 inboard fixed mounting has long hollow inclined plate 39, high shell 34 outside fixed mounting has small particle outlet 310, high shell 34 outside fixed mounting has large particle outlet 311 one end, short support frame 2 outside fixed mounting has another group of round plate 31, spring rod 32 and connecting frame 33, another group of connecting frame 33 outside fixed mounting has short shell 312, short shell 312 inboard fixed mounting has fixed frame 313, fixed frame 313 outside fixed mounting has medium screening plate 314, short shell 312 inboard fixed mounting has short hollow inclined plate 315, short shell 312 inboard fixed mounting has small screening plate 316, short shell 312 outside fixed mounting has large outlet 317, short shell 312 outside fixed mounting has medium outlet 318, short shell 312 outside fixed mounting has small outlet 319, round plate 31, spring rod 32, connecting frame 33, vibrating stand 35 and vibrating motor 36 are provided with multiple groups, and one group of multiple round plate 31, spring rod 32 and connecting frame 33 array in high support frame 1 four corners, another group of multiple round plate 31, spring rod 32 and connecting frame 33 array in short support frame 2 four corners, and multiple vibrating motor 36 linear array with equal intervals outside vibrating stand 35, and multiple vibrating stand 35 and vibrating motor 36 are arranged outside high shell 34 and short shell 312 respectively, large particle outlet 311 is arranged above fine screening plate 38, small particle outlet 310 is arranged below fine screening plate 38, large particle outlet 311 is arranged above short shell 312, large outlet 317 is arranged above medium screening plate 314, medium outlet 318 is arranged below medium screening plate 314, small outlet 319 is arranged below medium screening plate 314, fine screening plate 38 and medium screening plate 314 are inclined, small screening plate 316 is arranged outside small outlet 319, small screening plate 316 and small outlet 319 are arranged at the low end of short hollow inclined plate 315, when starting screening process, vibrating motor 36 is electrified and works, produces strong and regular vibration, passes vibrating stand 35 and is delivered to high shell 34, makes the coal material in its inside be in sustained vibration state, under the action of vibration, coal is constantly tumbled and moves on fine screening plate 38, fine screening plate 38 separates coal according to granularity because of its specific aperture design, and the coal particle with smaller particle size passes through fine screening plate 38 and is discharged from small particle outlet 310 below it,And the larger coal particles are left above the fine sieve plate 38, waiting to enter the next stage of screening, large particles of coal through the large particle outlet 311 smoothly into the short outer shell 312, coal into the short outer shell 312, again in the vibrating environment in the medium sieve plate 314 on the screen, the particle size greater than the medium sieve plate 314 aperture coal from the large outlet 317 located above it; particle size, can pass through the medium sieve plate 314 but greater than the small sieve plate 316 aperture coal, continue to move downward, from the medium outlet 318 located below the medium sieve plate 314 discharge; finally, the smallest coal particles reach the small sieve plate 316, the small sieve plate 316 is provided in the lower end of the short hollow inclined plate 315, coal through the small sieve plate 316 from the outside of the small outlet 319, the whole process, the inclined fine sieve plate 38, medium sieve plate 314 and short hollow inclined plate 315 use gravity to help coal material automatically slide to the corresponding outlet, realize the coal according to the particle size multi-level accurate screening, greatly improve the screening efficiency and quality, while in the device running process, the spring rod 32 by virtue of its elasticity effectively buffer vibration, reduce the damage caused by vibration on the overall structure of the equipment, to ensure the smooth operation of the screening work.
[0027] In an embodiment of the utility model, high support frame 1 outside is provided with dustproof assembly 4, dustproof assembly 4 includes dustproof board 41, high outer shell 34 outside fixed installation has dustproof board 41, dustproof board 41 outside fixed installation has arc cylinder 42, arc cylinder 42 outside hinged installation has cover plate 43, cover plate 43 outside fixed installation has handle 44, short outer shell 312 outside fixed installation has sealing plate 45, sealing plate 45 outside fixed installation has cylinder 46, large particle outlet 311 another end is set in the inside of cylinder 46, in normal screening operation, close cover plate 43, make whole high outer shell 34 be in relatively closed state, the dust raised in the material flow process is confined in the space surrounded by dustproof board 41, arc cylinder 42 and cover plate 43, can not a large number of drift to the surrounding environment, effectively prevent dust leakage, and through dustproof board 41 outside, its unique arc structure provides buffer space for coal entering high outer shell 34, reduces the dust impact force generated in the instant material enters, reduces the dust overflow probability, simultaneously through the sealing plate 45 of short outer shell 312 outside and cylinder 46 cooperation, not only realized high outer shell 34 and short outer shell 312 in the sealing link of material transmission, prevent dust from leaking from the interface, further dust is enclosed in short outer shell 312, when coal carries out secondary and tertiary screening operation in short outer shell 312, the dust generated is also difficult to break through the block of sealing plate 45 and cylinder 46, thereby reducing the dust harm to the health of operating personnel, avoid environmental pollution, guarantee coal mine screening operation clean, in line with regulations, conducive to long-term stable production.
[0028] Working principle: when starting the screening process, the vibration motor 36 is powered on to produce strong and regular vibration, which is transmitted to the high shell 34 through the vibration frame 35, so that the coal material in the high shell 34 is in a state of continuous vibration. Under the action of vibration, the coal continuously rolls and moves on the fine screening plate 38. The fine screening plate 38 separates the coal according to particle size due to its specific aperture design. The coal particles with smaller particle size pass through the fine screening plate 38 and are discharged from the small particle outlet 310 located below the fine screening plate 38, while the coal particles with larger particle size remain above the fine screening plate 38 and wait to enter the next stage of screening. The large particle coal smoothly enters the short shell 312 through the large particle outlet 311. After the coal enters the short shell 312, it is screened again on the medium screening plate 314 in a vibrating environment. The coal with a particle size larger than the aperture of the medium screening plate 314 is discharged from the large outlet 317 located above the medium screening plate 314. The coal with a particle size that can pass through the medium screening plate 314 but is larger than the aperture of the small screening plate 316 continues to move downward and is discharged from the medium outlet 318 located below the medium screening plate 314. Finally, the coal particles with the smallest particle size reach the small screening plate 316, which is arranged at the lower end of the short hollow inclined plate 315. After the coal passes through the small screening plate 316, it is discharged from the small outlet 319 located outside the small screening plate 316. During the entire process, the inclined fine screening plate 38, medium screening plate 314, and short hollow inclined plate 315 utilize gravity to assist the automatic sliding of coal material to the corresponding outlet, achieving multi-level precise screening of coal according to particle size, greatly improving screening efficiency and quality. At the same time, during the operation of the device, the spring rod 32 effectively buffers the vibration due to its elasticity, reducing damage to the overall structure of the equipment caused by vibration and ensuring the smooth progress of the screening operation. When the normal screening operation is performed, the cover plate 43 is closed, making the entire high shell 34 in a relatively closed state. The dust raised during the flow of material is confined in the space surrounded by the dustproof plate 41, arc-shaped cylinder 42, and cover plate 43, and cannot be dispersed in large quantities to the surrounding environment, effectively preventing dust leakage. At the same time, through the cooperation of the sealing plate 45 and cylinder 46 outside the short shell 312, not only is the sealing connection between the high shell 34 and the short shell 312 achieved during the material transmission process to prevent dust leakage from the interface, but also the dust is further enclosed in the short shell 312. When the coal is subjected to secondary and tertiary screening in the short shell 312, the dust generated is also difficult to break through the blockage of the sealing plate 45 and the cylinder 46, thereby reducing the harm of dust to the health of the operating personnel and avoiding environmental pollution, ensuring clean and compliant coal mine screening operation and facilitating long-term stable production.
[0029] The utility model has made the detailed description to the utility model generally above, but can make some modification or improvement to it on the basis of the utility model, and this is obvious to the general skilled person in the technical field. Therefore, the modification or improvement without departing from the utility model's thought spirit, all are within the utility model's protection scope.
Claims
1. A multi-layer coal mine screening device, comprising a high support frame (1), the outer side of the high support frame (1) is provided with a low support frame (2), characterized in that: The high support frame (1) is externally provided with a screening assembly (3), the screening assembly (3) comprises: A circular plate (31) is fixedly installed on the outside of the high support frame (1), one end of a spring rod (32) is fixedly installed on the outside of the circular plate (31), a connecting frame (33) is fixedly installed on the other end of the spring rod (32), the circular plate (31), the spring rod (32) and the connecting frame (33) are provided in multiple groups, a high housing (34) is fixedly installed on the outside of the connecting frame (33), a vibration frame (35) is fixedly installed on the outside of the high housing (34); A vibration motor (36) is fixedly installed on the outside of the vibration frame (35), a mounting frame (37) is fixedly installed on the inside of the high housing (34), a fine screening plate (38) is fixedly installed on the outside of the mounting frame (37), a long hollow inclined plate (39) is fixedly installed on the inside of the high housing (34), a small particle outlet (310) is fixedly installed on the outside of the high housing (34), a large particle outlet (311) is fixedly installed on the outside of the high housing (34), another group of circular plates (31), spring rods (32) and connecting frames (33) are fixedly installed on the outside of the low support frame (2); A low housing (312) is fixedly installed on the outside of another group of connecting frames (33), a fixing frame (313) is fixedly installed on the inside of the low housing (312), a medium-sized screening plate (314) is fixedly installed on the outside of the fixing frame (313), a short hollow inclined plate (315) is fixedly installed on the inside of the low housing (312), a small screening plate (316) is fixedly installed on the inside of the low housing (312), a large outlet (317) is fixedly installed on the outside of the low housing (312), a medium outlet (318) is fixedly installed on the outside of the low housing (312), and a small outlet (319) is fixedly installed on the outside of the low housing (312).
2. A multi-deck coal mine screening device according to claim 1, characterised in that: The circular plate (31), the spring rod (32), the connecting frame (33), the vibration frame (35) and the vibration motor (36) are provided in multiple groups.
3. A multi-deck coal mine screening apparatus as claimed in claim 1, wherein: The large particle outlet (311) is arranged above the fine screening plate (38), the small particle outlet (310) is arranged below the fine screening plate (38), the large particle outlet (311) is arranged above the low housing (312), the large outlet (317) is arranged above the medium-sized screening plate (314), the medium outlet (318) is arranged below the medium-sized screening plate (314), and the small outlet (319) is arranged below the medium-sized screening plate (314).
4. The multi-layer coal mine screening device according to claim 1, characterized in that: The fine screening plate (38) and the medium-sized screening plate (314) are inclined, the small screening plate (316) is arranged on the outside of the small outlet (319), and the small screening plate (316) and the small outlet (319) are arranged at the low end of the short hollow inclined plate (315).
5. A multi-deck coal mine screening apparatus according to claim 4, wherein: The high support frame (1) is externally provided with a dustproof assembly (4), the dustproof assembly (4) comprises a dustproof plate (41), the high shell (34) is externally fixedly installed with the dustproof plate (41), the dustproof plate (41) is externally fixedly installed with an arc-shaped cylinder (42), the arc-shaped cylinder (42) is externally hingedly installed with a cover plate (43), the cover plate (43) is externally fixedly installed with a handle (44), the low shell (312) is externally fixedly installed with a sealing plate (45), and the sealing plate (45) is externally fixedly installed with a cylinder (46).
6. A multi-deck coal mine screening apparatus as claimed in claim 4, wherein: The other end of the large-particle outlet (311) is arranged in the inner side of the cylinder (46).